Hot-water-bag heater.



T.E.FOGALSANG & E MGCUTCHEON.

HOT WATER BAG HEATER.

APPLIGATION'FILBD 00T.12,191m

Patented sept. 5,1911.

INVENTORS THoM/as E. FoeALsANe WITNESSES 6B AND BERTHA Mc GurcuEoN THEIRATTORNEY.

UNITED STATES PATENT oEEIoE.

THOMAS E. FOGALSANG AND BERTI-IA MCCUTQHEN, '0F SAN FRANCISC,CALIFORNIA, ASSIGNORS TO JOSEPH A. MOROSS, SAN' FRANCISCO, /CALIFORNIA.

HoT-WATER-BAG HEATER.

Specification of Letters Patent. .i Patented Sept. 5, 1911.

Application led October 12, 1910. Serial No. 586,736.

To all whom it may concern:

Be it known that we, THOMAS E. FoGAL- SANG and BERTHA MCCUTCHEON, bothcitizens of the United States, residing in the city and county of SanFrancisco and State of California, have invented new and u sefulImprovements in Hot-Water-Bag Heaters, of which the following is aspecification.

Our invention relates to hot water bags and pertains/ especially to ahot water bag to be heated by electricity,

The object of the invention is to provide a simple, practicalelectrically heated hot `Water bag in which a naked electrode can beused; the electrode carried by the stopper which can be screwed into thehot water bagr like any ordinary stopper, or otherwise construction andcombination of parts as hereinafter more and` fully described claimedhaving reference tothe accompanying` drawings, in whichigure 1 is a planview in par-tial seci tion of the bag and stopper, showing theapplication of the invention. Fig. 2 is a section on X-'X, Fig. 1. Fig.3 illustrates a modification of the invention on a reduced scale. Y

A, represents' a hot water bag of any suitable description.

2 is a stopper of hard rubber or other suitable dielectric material,screwed, 0r otherwise appropriately secured in the mouth of the bottleto `vform a closure therefor, and at the same time to form a support forthe heating element. As shown in Fig. 1, this heating element consistsof two non-corrosive high resistance electrodes 3, which are suitablyfastened to two wires L@embedded 'in and extending through the stopper2.

an equivalent* gasket 5 may beinterposed and form male members which areadapted to telescope with the female or sleeve conducting-couplers 7,which are carried by and in electrical union with the terminals of thecords 8. These metalliclsleeves 7 tit in a bushing 9 of suitableinsulating material, such as hard rubber, fiber or porcelain. The lowerends of the electrodes which project within the bag A are suitablyspaced and insulated from one another by a bulb or spacing member 10, ofhard rubber or the like. In Fig. 3, we have shownthe electrical heatingunit as wound around an insulating post. 10.

In practice, a suitable quantity of water is placed in the bag and thestopper 2 screwed in, in the usual fashion, allowing. the electrode orelectrodesto be immersed in the water within the bag.l In order to keepthe electrode out of contact with the sides of the bag, as the heat ofthe electrode might under some circumstances, injure the rubber, theinsulationlO or 10 may be of sufficient diameter or size to support theinner end of the electrodes away from the sides of the bag.

To heat the water it is only necessary to connect the projecting ends ofthe wires 4 with a suitable source `of electric current throu h themedium of a coupler 9 and electrlcal connection 7-8. As soon as thewater Vis heated to a sufficient temperature the electrical connectioncan be easily broken by removing the coupler 9. If the water has cooledoff in the bag it is quickly reheated by restablishing the electriccircuit, without having to change the water or even disturb the patient.Having thus described our invention, what we claim and desire to secureby Letters Patent is- Y 1. The combination of a hot Water bag land astopper therefor, said stopper of insulating material and carrying anexposed electrode, said electrode adapted to -project within the bag andto be removable there-' from with the stopper, and having means on theoutside of the stopper for connection with an electrical circuit, saidmeans comprising a conducting sleeve telescoping with an extendingportion of the electrode, and a bushingofinsulating material receivingand inclosing the sleeve and 'piercedv to admit a conducting wireto theelectrode.

2. The combination of a collapsible hot Water bag, a stopper therefor ofdielectric material in which are embedded a pair of conducting \wires,electrodesi connected with the said Wires Yand projecting. within thebag but removable therefrom with theY stopper, and an enlargement fixedby the electrode within the bag and carried by the electrodes andcoperating with the stopper THOS. E. FOGALSANG. BERTI-IA MCCUTCHEON.

Witnesses:

CHARLES EDELMAN, C. MARK.

